From Small to Extra large: Passive House Rising to New Heights 2018

Mayor Bill de Blasio has called climate change “the challenge of our generation,” and New York City has responded to this challenge by committing to achieving greenhouse gas reductions of 80% by 2050. “The leadership shown by Governor Cuomo and New York State to make bold emissions reductions commitments is vital to solving the climate crisis,” says former Vice President Al Gore…read more


Be-Ex Celebrate NYC: EnerPHit Showcase

For the Building Energy Exchange Celebrate NYC: EnerPHit Showcase, ChoShields Studio was invited to be a panelist. This panel event featured presentations from three architecture firms…read more


Women in Sustainability and Energy (WISE)

Scan 2019-2-11 12.18.25.jpg
Photo: The Building Energy Exchange NYC

Photo: The Building Energy Exchange NYC

For Be-Ex’s first ever Women in Sustainability and Energy (WISE) networking lunch, In was one of the “seasoned professionals from across the energy & sustainability industry, including policy, law, consulting, utilities, and advocacy,” invited to be a table leader for the event…read more


Be-Ex Celebrate NYC: Exhibition

Building Energy Exchange called for submissions from across our community, and compiled Celebrate NYC, a showcase of energy efficient building renovations and retrofits. This exhibit features upgrades and improvement of existing buildings of all different sizes and purposes throughout New York City, such as lighting, controls, HVAC, envelope, and domestic hot water.

Each project in the exhibit shows the work of a diverse set of professionals, and the support of multiple organizations and government agencies. Each individual contribution to reducing the City’s impact on the environment contributes to the collective goal of 80×50, and unites the city towards progress…read more


Celebrate NYC: Tour of Gramercy Townhouse

On Tuesday September 18th, 2018, Building Energy Exchange hosted an exclusive tour of an apartment unit in Gramercy Townhouse, a 4,500 square foot luxury vacation rental home and Manhattan’s first Passive House apartments. The tour was led by architect In Cho, founder of ChoShields Studio, the Certified Passive House multi-disciplinary architectural firm behind the renovation. Brian Starr, General Manager of Gramercy Townhouse provided insights on guests’ experience of the Passive House vacation home.

This program was offered in conjunction with Celebrate NYC: EnerPHit Showcase, a panel event that was on September 12th, featuring NYC retrofits reaching the rigorous EnerPHit standard.


Arrowhead Farm, Kerhonkson NY


475 On-Site: Gramercy Passive House with ChoShields Studio

Step on-site at this beautiful 1900's masonry building turned Passive House. ChoShields Studio principal In Cho and her team exhibited artistry and tenacity bringing this project to life. It proves that even the most challenging cases can be retrofitted to Passive House standards...read more


LowCarbonProductions_Cover_Image_450px.jpg

Low Carbon Publication: Manhattan house project (Fall 2017)

New York City’s beautiful townhouses require careful treatment in order to participate in a sustainable future. Our townhouse renovation in Manhattan faced constraints typical of an urban infill environment: structural deficiencies in the existing masonry construction, limited potential for solar heat gain in the winter, and restrictive fire codes. Nevertheless, after completing this Passive House retrofit, we improved the average energy use per square foot by more than a factor of 4 compared to a typical New York State household...read more


New York Mag Publication: New House in an Old House (Summer 2017)


Vienna International Passive House Conference 2016

In Cho with Wolfgang Feist, passive house co-founder.

In Cho with Wolfgang Feist, passive house co-founder.

In Cho presenting at the Vienna International Passive House Conference.

In Cho presenting at the Vienna International Passive House Conference.


North American Passive House Conference 2016 (NAPH)

In Cho, of ChoShields Studio was honored to present at the NAPH 2016 in NYC. She presented the Manhattan two family townhouse gut renovation – that is to be certified under the Enerphit Component certification.


Case Study on Energy Saving Potential of Installing Certified Passive House Windows

Klearwall is supplying Certified Passive House windows to the above gut renovation of a townhouse in Manhattan. The project is targeting the EnerPHit retrofit Passive House standard, led by Brooklyn Architect In Cho of ChoShields Studio...read more


International Passive House Tour 2017

ChoShields Studio was pleased to have participated in the Open House Tour showcasing their Manhattan two family townhouse – to be certified Enerphit-Component Certification.


Senator Adams Attends the Parkside Prize Award Ceremony and Reception

Senator Adams attended the Parkside Prize Award Ceremony and Reception and gave out awards to the winners of the Parkside Prize Competition. The Parkside Prize competition invited contestants to propose a new design for Parkside Avenue between Ocean and Flatbush Avenues, the eastern gateway to Prospect Park. The grand prize was awarded to In Cho, of the Brooklyn architecture studio ChoShields...read more


The Parkside Prize Goes For the Gold

In case you hadn't been paying attention to the Q's endless braying, here's the backstory: a diverse collective of neighbors calling themselves The Parkside Project have been clocking countless hours to try to turn the stretch of avenue from the Park to Flatbush into something more than an eyesore to be endured...read more

Meet the People Breathing Life Into NYC’s Overlooked Public Spaces

There are two dueling visions of public space in New York City. On one side, tabloid columnists and the police commissioner believe that any problems encountered in Midtown’s public spaces — whether homeless men or hustling desnudas — should be fixed by replacing space for people...read more

Re-imagining a Neglected Stretch of Parkside Avenue

Last year a group of Prospect Lefferts Gardens neighbors banded together to launch a contest inviting people to come up with new ideas for Parkside Avenue between Flatbush and Ocean...read more


Butterfly Garden: A Park Reclaimed

Right next to the Prospect Expressway, at 18th Street and Seventh Avenue, sits a half-acre park in a space left over from when the highway was built through the neighborhood in the late 1950s. Over the last decade, that small slice of land has flourished into Butterfly Garden, a learning garden and barrier-free outdoor classroom taking shape with the Civic Council’s help on the very edge of Park Slope...read more